Arnaud Cogoluègnes created PROTON-2795:
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Summary: Message format cannot be set to 0 on outbound messages
Key: PROTON-2795
URL: https://issues.apache.org/jira/browse/PROTON-2795
Project: Qpid Proton
Issue Type: Bug
Components: protonj2
Affects Versions: protonj2-1.0.0-M19
Reporter: Arnaud Cogoluègnes
Assignee: Timothy A. Bish
Setting the message format to 0 or keeping the default value results in a null
value in the {{transfer}} frame.
0 seems to be considered [a special
value|https://github.com/apache/qpid-protonj2/blob/d5144af7818b2695747782bacc410580d3ec7943/protonj2/src/main/java/org/apache/qpid/protonj2/engine/impl/ProtonSessionOutgoingWindow.java#L270-L274]
in the code.
This contradicts [the
Javadoc|https://github.com/apache/qpid-protonj2/blob/d5144af7818b2695747782bacc410580d3ec7943/protonj2-client/src/main/java/org/apache/qpid/protonj2/client/AdvancedMessage.java#L170-L200]:
{quote}This field MUST be specified for the first transfer of a multi-transfer
message, if it is not set at the time of send of the first transfer the sender
uses the AMQP default value of zero for this field.{quote}
As well as the AMQP spec (section 2.7.5):
{quote}This field MUST be specified for the first transfer of a multi-transfer
message and can only be omitted for continuation transfers. It is an error if
the message-format on a continuation transfer differs from the message-format
on the first transfer of a delivery.{quote}
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